Such a twig won't have a real bark just a thin skin. Peel that skin off. Now chew one end of the stick. All the fibres will separate and the end will turn into a little brush. The process of chewing the twig is already helpful. It releases the beneficial ingredients in neem that kill harmful bacteria reduce inflammation and stop bacteria and plaque from sticking to your teeth. Using The Neem Toothbrush Then that brush is used to rub over all the sides of all teeth. Be careful not to injure the gums in the process. This is the part where you actually clean the teeth. In the end you just spit out all the little bits of neem fibre. It doesn't taste real nice by the way. Bitter. The neem toothbrush is disposable meant to be used only once. After cleaning the teeth the neem stick is split in half and one end is bent into a U-shape and used as a tongue cleaner. Removing the soft plaque from the anaerobic back of the tongue also makes a big difference in overall oral hygiene and levels of harmful bacteria so don't overlook this aspect of using the neem toothbrush. To use a neem stick for oral care chew the end of the stick to form bristles and then carefully rub the bristles along your gum line as you would a toothbrush. Cut off the end each time you use it to ensure freshness.